![The first external filter with the technology to extend intervals between cleaning | EHEIM GmbH & Co. KG. Leading aquarium manufacturer. The first external filter with the technology to extend intervals between cleaning | EHEIM GmbH & Co. KG. Leading aquarium manufacturer.](https://eheim.com/media/image/3b/0b/57/2271-2275_prof_4-_D-1.jpg)
The first external filter with the technology to extend intervals between cleaning | EHEIM GmbH & Co. KG. Leading aquarium manufacturer.
![Eheim „Professionel 4+“ 350T Thermofilter incl. Filtermedien / für Aquarien bis ca. 350 Liter - Diamantaquarien – Shop Eheim „Professionel 4+“ 350T Thermofilter incl. Filtermedien / für Aquarien bis ca. 350 Liter - Diamantaquarien – Shop](https://www.diamantaquarien.de/shop/wp-content/uploads/2019/03/350erT2.jpg)
Eheim „Professionel 4+“ 350T Thermofilter incl. Filtermedien / für Aquarien bis ca. 350 Liter - Diamantaquarien – Shop
![Eheim „Professionel 4+“ 350T Thermofilter incl. Filtermedien / für Aquarien bis ca. 350 Liter - Diamantaquarien – Shop Eheim „Professionel 4+“ 350T Thermofilter incl. Filtermedien / für Aquarien bis ca. 350 Liter - Diamantaquarien – Shop](https://www.diamantaquarien.de/shop/wp-content/uploads/2019/03/350erT3.jpg)